A+ Certification Word Scramble
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Question | Answer |
Number of pins in a serial port | 9-pin or 25-pin |
Maximum transmission speed of a serial port | 115 kilobits per second (Kbps) |
Serial ports transfer data at what rate | 1 bit at a time |
The standard setting for a serial port | 9600 bps |
What IRQ and I/O address is assigned to a serial port | I/O address 3F8, IRQ 4 (COM 1) |
Number of pins in a parallel port | 25 |
Parallel port transfer data at what rate | 8 bits or 1 byte at a time |
How many pins does the 1284b Centronic port have | 36 |
What I/O address and IRQ is assigned to a parallel port | I/O address of 378, IRQ 7 (LPT1) |
How many pins does a Mini-DIN (PS/2) port have | 6 |
A computer that lacks a Mini-DIN(PS/2) port must have a | USB port |
Most monitors and projectors connect to one of three video ports, name them | Video Graphics Array (VGA), Digital Visual Interface (DVI), or DisplayPort |
Almost all CRT's and some LCD monitor connect into which port | VGA |
Some LCD's and Projects connect into which port | DVI |
How many pins does a VGA port have | 3 rows of 5 pins (15-pin) |
How many pins does a DVI-I port have | 24 |
The DisplayPort has how many pins | 20 |
What can the 15-pin DB connector be used for? | Midi devices and Joysticks |
The most common fiber connectors are | ST, SC, and LC |
Very old NIC's might have a bayonet style connector called a ? used for 10Base2 or Thinnet networking | BNC connector |
USB ports come in three varieties | A,B, and mini |
USB Type A plugs into what device | The computer |
Type B and mini USB ports plug into what device | The midi device |
USB 1.1 and USB 2.0 transfers data at what speeds | (USB 1.1) 12 megabits per second and (USB 2.0) 480 Mbps |
How many USB devices can be connected at the same time | 127 |
FireWire 1394a calls for transfer speeds of up to ? and 1394b is capable of speeds up to ? | 400 Mbps and 800 Mbps |
FireWire 400 ports have how many pins standard? FireWire 800 devices have how many pins? | FireWire 400 ports have a 4-pin connector FireWire 800 devices have a 9-pin connector |
How many FireWire devices can you connect at one time | 63 |
How many pins does a SCSI female Ultra-320 port have What is the bit transfer rate | 68-pin 5 to 8 megabytes per second for early incarnations and 320 MBps for current versions |
What do is used to clean electrical contacts and components such as the drive heads on removable media devices, but should never be used on motors or rubber drive belts | Denatured Alcohol |
What solution is safe to use on most metal and plastic surfaces on PC's, but should never be used on older LCD screens | Glass Cleaner |
Can be used to remove dirt, grime, and fingerprints from surfaces such as your monitor screen, LCD screen or scanner bed | Vinegar and Water Solution (1 part WHITE vinegar and 4 parts water) |
Can be used to loosen dirt and dust from delicate PC components | Canned air |
Can be used to clean dust and dirt from hard-to-reach areas and to wipe grime from electrical contacts | soft-bristled brushes and lint-free swabs |
used to suck up dirt and dust loosened by a brush or canned air | NON-STATIC vacuum |
Occurs when the supply of electricity drops dramatically but does not go out completely | Brownout |
Occurs when power goes out completely | Blackout |
Occurs when the voltage on your power line rises suddenly to above-normal levels | Power surge or power spikes |
Protects the PC from brownouts or blackouts | Uninterrupted Power Supply (UPS) |
Protects the PC from power surges or spikes | Surge Protector |
Occurs when two signals get too close together and the noise of one is picked up by the other | Electromagnetic interference (EMI) |
Never plug a laser printer into one of these because it will cause the device to function improperly. | Uninterrupted Power Supply (UPS) |
Two ways to minimize EMI | Shortening the cables Move data cables away from power cables |
Only protection against lightening strikes | Unplug the PC and all peripherals |
Environmental hazards to the PC | Heat, Moisture, and Dirt |
Safest way to store PC's for future use is to store them in an | Anti-static bag |
Electrostatic discharge (ESD) that affects your PC can be placed in these three categories | catastrophic damage, hidden damage, and gradual damage |
Type of ESD that causes a computer component to fail immediately | Catastrophic ESD damage |
Type of ESD damage that builds up over time and goes unnoticed until a component begins to behave erratically | Hidden ESD damage |
Type of ESD damage that's not immediately apparent in full force; instead, the effects gradually get more and more noticeable over time. | ESD degradation |
One of the most important steps you can take to prevent ESD before you hand a PC component | Ground yourself by touching a metal surface such as the exterior of your PC power supply |
Never wear one of these while working near high voltage | Antistatic strap (1-megohm resistor) |
Provides a work surface that dissipates ESD | Antistatic Mat (1-megohm resistor) |
When wearing an antistatic wrist strap you normally would ground yourself by attaching the grounding wire to what | A metal device, a computer chassis or if the antistatic strap has one plug the prong into the ground wire of an electrical outlet |
This can be used to prevent static build up in your clothing | Antistatic spray |
Type of fire extinguisher that puts out a fire in a computer | Type C |
Proper way to dispose of batteries | take back to the manufacture or to a recycling center. Disposal instructions are printed on them most of the time. |
Proper way to dispose of CRT's | Send them to a commercial recycler or contact your city's hazardous waste management department |
Proper way to dispose of Toner and Inkjet Cartridges | Refill them or send them to a commercial recycler service |
All batteries, chemicals, and other hazardous items come with an ? that documents the safety warnings and procedures when handling the product | Material Safety Data Sheet (MSDS) |
Every motherboard has one of these that determines the type of processor accepts and the type of internal/external devices the motherboard can support | Chipset |
The oldest traditional configuration of the chipset contains two chips called | Northbridge (Memory Control Hub MCH) and Southbridge (I/O Control Hub ICH) |
What's the function of the Northbridge | To connect the CPU to the fastest device-(RAM, High Speed Video Cards, etc). Needs sufficient cooling like fans and heatsinks |
What's the function of the Southbridge | Handles some expansion device and hard drives. Slower speed devices then what's on the NorthBridge. Needs less cooling then the northbridge |
Three of the most common motherboard form factors | ATX, BTX, and NLX |
Of the three most common motherboard form factors which is the most popular | ATX and microATX |
This form factor allows for special slots called audio modem risers(AMR) and communication and networking risers (CNR). These slots allowed motherboard manufacturers to avoid FCC certification | NLX |
How can you update a motherboard's internal drivers | By flashing the bios. There is no recovery from flashing failure if done incorrectly |
The AC plug on the back of a power supply is called | IEC 320 connector |
Power supply unit(PSU) that can handle different voltages are called | switch-mode power supply |
Powered connector used for floppy, parallel ATA(PATA), and SCSI drives | four-wire mini and Molex connectors |
Connector for PCI Express video cards | 6 or 8-wire PCIe connector |
Power supplies connect to the motherboard with up to four connectors, what are they? | 20 or 24-wire P1 connector (primary power circuit), 4-wire P4 connector (secondary power usually supplies power to the CPU), and a 6-wire auxiliary connector |
What's the 5-volt orange wire on the P1 connector called | Power Good and is used for the initial boot sequence |
A hum you hear when the power supply runs and can cause problems if not control | harmonics |
A power supply that comes with extra circuitry that smooths out the way the power supply takes power from the electric company and can eliminate harmonics comes with | Power Factor Correction (PFC). Auto Switching PFC detects and adjusts the voltage that's coming from the wall accordingly |
processes data and is the primary processing component of the CPU | Arithmetic logic unit (ALU) |
Memory circuits located inside the CPU that hold data before and after processing | Registers |
Used to check the voltage coming out of a power supply | multimeter |
Every tech should have known-good supplies called | Field Replaceable Unit (FRU) |
Handles complex calculations for applications that require it, such as graphics programs and 3-D games | Floating Point Unit (FPU) |
The voltages supplied by most PC pwer supplies can safely vary by as much as | + or - 10% |
CPUs have two sets of ultra-fast static RAM (SRAM) memory built in called | Cache |
Memory that is fast, cheap, and must be refreshed | SDRAM (Dynamic RAM) - normal system RAM |
Memory that really fast, very expensive, ad requires no refreshing | SRAM (Static Ram)-cache |
Defines the maximum amount of RAM a CPU can theoretically address | The number of wires on the address bus also known as the address space |
Gives you a good indication of the caliber of the CPU | The pipeline, clock speed, and clock multiplier |
The discrete series of steps that the CPU follows to process commands | Pipeline |
Tells you how many calculation cycles a CPU can execute per second | CPU clock speed or frequency |
Two things determine clock speed | the maximum speed of the CPU and the maximum speed of the motherboard |
Early CPU's took the beat set by the clock and simply double it, this is called a | Multiplier |
CPU that comes in a square package | Pin Grid Array |
Uses a small arm on the side of the zocket or a cage that fits over the socket to hold the CPU in place | Zero Insertion Force socket (ZIF) |
Intel and AMD produced large, rectangular-shaped CPUs that fit into a slot, kind of like an expansion card called | Single Edge Cartridges (SECs) |
Implements simultaneous multithreading, which is a way of executing multiple threads simultaneously on a single processor core | Hyperthreading |
CPU that can lower their clock speeds when they reach a certain temperature has a feature called | throttling |
AMD and Intel share common socket types..True or False | False |
If the fan on a CPU is spinning but the PC doesn't boot you should? | Make certain that any jumpers governing speed or voltage are set correctly |
How many pins do Single inline memory modules (SIMMs) usually have | 30 or 72 |
How many pins do dual inline memory modules (DIMM) usually have | 168, 184, or 240 |
How many pins does microDIMM usually have | 144, 172, or 214 |
How many pins does SO-DIMM usually have | 72,144, 200, and 204 |
How many pins does RIMM usually have | 184 and 232 |
Printer process | Clean, Charge, Write, Develop, Transfer, Fuse |
Created by:
Ramel34
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